Headquarters Address: No. 285, Jiujiang East Road, Chuzhou City, Anhui Province
Product Center
Product Series
PRODUCTS SERIES
Product Specifications:
Table
Parameter Item
|
Standard value
|
Rated voltage
|
12 kV (compatible with 3.6 kV/7.2 kV/12 kV systems)
|
Rated frequency
|
50Hz/60Hz
|
Rated busbar current
|
630A, 1250A, 1600A, 2000A, 2500A, 3150A, 4000A, 5000A
|
Rated short-circuit breaking current
|
20/25/31.5/40/50kA
|
Rated short-time withstand current (4 s)
|
20/25/31.5/40/50kA
|
Rated peak withstand current
|
50/63/80/100/125kA
|
Lightning impulse withstand voltage (phase-to-phase / phase-to-ground)
|
75 kV; flashover voltage 85 kV
|
Power-frequency withstand voltage (1 min)
|
42kV
|
Protection rating
|
Cabinet enclosure IP4X; circuit breaker door open position IP2X
|
Cabinet external dimensions (width × depth × height)
|
Standard dimensions: 800×1500×2200 mm; width available in 650/1000 mm.
|
Cabinet material
|
Aluminum-zinc coated steel sheet (CNC bending and assembly)
|
Mechanical life
|
≥50,000 times
|
Internal Arc Withstand Capability
|
Up to 40 kA/1 s, with a standard independent pressure relief channel.
|
Standard features
|
Complete Five-Prevention Mechanical Interlock , Operable with the door closed; the shutter automatically isolates energized components.
|
Application scenarios:
- Power grid system : Incoming and outgoing lines, metering, for urban substations, switchgear stations, and distribution rooms, PT , Use of busbar sectioning and interconnection cabinets
- Industrial and mining enterprises : Factory main distribution room, metallurgy / Chemical industry / High-voltage power distribution in coal mines, as well as the starting, stopping, and protection of high-power high-voltage motors.
- Building amenities : Commercial complexes, data centers, hospitals, airports, rail transit systems, and large office buildings 10kV Distribution system
- New energy sector : Photovoltaic step-up substation, high-voltage switchgear for wind power transformer substations, and primary distribution units for energy storage power stations
- Infrastructure : High-voltage power supply and distribution systems for water treatment plants, wastewater treatment plants, industrial parks, and logistics parks
Product Advantages:
- Fourfold Independently Armored Compartments : The busbar compartment, circuit breaker compartment, cable compartment, and instrument compartment are all fully metal‑enclosed; fault arcs cannot propagate into adjacent compartments, and the pressure‑relief channels direct pressure release, ensuring exceptionally high personal safety. Sigma Electric ...。
- Reliable Five-Prevention Interlocking System : Forced interlocking prevents load‑carrying disconnector operations, inadvertent circuit breaker opening or closing, energized grounding switch closure, energized closing and power supply, and unauthorized entry into live compartments, thereby meeting State Grid acceptance standards.
- Modular handcart design The vacuum circuit breaker’s handcart can be fully withdrawn for maintenance, offering high interchangeability, short fault‑replacement times, and convenient operation and upkeep; its interlocked door automatically seals the stationary contacts when the handcart is inserted or removed, ensuring that no live parts are exposed during maintenance.
- Corrosion-resistant and durable cabinet body : Aluzinc steel panels require no painting, offer excellent oxidation resistance and corrosion resistance, and remain rust‑free and deformation‑free even with prolonged indoor use. The cabinet boasts high structural rigidity and an advanced seismic resistance rating. AG5 (Tolerance 9 magnitude earthquake).
- High compatibility : Matchable VS1 、 VD4 Like mainstream vacuum circuit breakers both domestically and internationally, it can be equipped with intelligent modules for temperature monitoring, partial discharge detection, and online comprehensive protection, making it suitable for unmanned distribution substations.
- Installation and maintenance-friendly : A double-sided, maintenance‑friendly layout; neatly organized internal wiring; ample cable‑room space; and sufficient workspace for on‑site wiring and maintenance tasks.
Keywords: KYN28-12
Service Hotline:
Contact phone number:18755010350
Customer service hotline hours: 08:00-17:00
Service email:944017450@qq.com
Headquarters Address: No. 285, Jiujiang East Road, Chuzhou City, Anhui Province
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